Model of sustainable water resources management in terms of extreme hydrological phenomena

[S. M. Stanković]

[14], 250 listova

Biografija autora: list 247. Bibliografija: listovi 210-232.

Working and living environment quality

The growing economic, ecological, and social importance of water resources highlights the need for adopting sustainable management strategies and protecting the ecosystem services they provide. Although extreme hydrological events are frequently the subject of scientific research, there remains a significant information deficit regarding their direct impact on the quality of raw surface water, which is the primary source of water for public water supply systems. The research conducted in this dissertation focuses on developing a model for sustainable management of water resources during extreme hydrological events. The study was carried out using examples from two public utility sources: "Vodovod" from Vlasotince and "Naissus" from Niš, over the observed period from January 2014 to December 2018. To identify, systematize, and determine priorities for executing functions within the system for managing primary ecosystem services, particularly in the context of public water supply, a methodology of process functions combined with ranking techniques was applied. This approach enabled the quantification and assessment of the effectiveness of business operations while simultaneously identifying specific process functions that required further improvements. For assessing the impact of extreme hydrological events on the quality of raw surface water, statistical analyses were used, including: descriptive statistics, one-way analysis of variance (ANOVA), correlation analysis of trends, cluster analysis, and principal components analysis (PCA). These analyses facilitated the characterization, quantification, and visualization of the impacts of extreme hydrological events on raw surface water quality. These analyses allowed for the quantification of the dependencies between volumetric flows and raw water quality parameters, including turbidity, COD (KMnO4), ammonia, nitrates, nitrites, iron, manganese, pH value, BOD5, aluminum and colour. The analyses were conducted using statistical programs R 4.0.4 and SPSS, characterizing changes in raw surface water quality due to flow variations associated with extreme hydrological events. The results of the research have been used to develop a contemporary, sustainable water resource management model that includes a predictive component enabling the anticipation of potential changes in the quality and availability of raw water. This contributes to the application of appropriate drinking water treatment technology and facilitates timely action during extreme hydrological events.

vodni resursi, vodovodni sistemi, ekstremne hidrološke pojave, kvalitet sirove vode, održivo upravljanje

water resources, water Supply systems, extreme hydrological events, raw water quality, sustainable management

502.131.1:502.5]:556(043.3)

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